"But it's interesting he says he'd like to play in a charity game. It could be brilliant, and next year when we play Real Madrid's Legends again, there could be opportunities to bring him up and see how he does."

Ferguson also said that he made some money after betting on Bolt to win each of his races.

"I must thank him because that was my biggest bet," he added. "Bolt was 4/5 to win each of them a week before the Olympics started. It was a brilliant bet."

Ferguson added: "I watched all the Olympics. For us to get 29 gold medals was terrific. It was probably the most uplifting thing that's happened in Britain for a long, long time."